There is rarely a situation where you should allow your employer to match the offer you have in hand.

They had the opportunity to do so and then failed to properly retain you. If they realize how much losing you will cost them in productivity, that’s on them, not you.

It’s not personal. It’s literally business.

There is a saying in engineering.

Anyone can build a bridge.

It takes an engineer who can build a bridge just strong enough to let cars cross it.